Ismail Daut, Prof. Dr.: Recent submissions

Now showing items 81-100 of 150

    • Harmonic content as the indicator of transformer core saturation 

      Ismail, Daut, Prof. Dr.; Syafruddin, Hassan; Soib, Taib; Risnidar, Chan; Muhammad Irwanto (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      The paper proposes a measurement method for obtaining the parameters needed to calculate a reliable indicator of the state of transformer core saturation. The major nonlinear effects in transformer core are saturation, ...

    • A 5-level multilevel inverter using LM350 voltage regulator IC 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib; Noor Shahida, Jamoshid (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents a 5-level multilevel inverter for low power applications that not exceeding 30W using the common LM350 voltage regulator IC. A microcontroller with appropriate program is used to control on the biasing ...

    • Design of high-side MOSFET driver using discrete components for 24V operation 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Noor Shahida, Jamoshid; Abdul Rahim, Abd Razak (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents the design of a high-side N-channel MOSFET driver using discrete components for 24Vdc operation. Special level shifting technique is used to increase the gate voltage higher than the supply voltage. ...

    • A new proposal to solar and grid-connected hybrid electricity for homes and buildings in Malaysia 

      Rosnazri, Ali; Ismail, Daut, Prof. Dr.; Soib, Taib; Noor Shahida, Jamoshid (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-23)
      This paper presents the proposal of a solar and grid-connected hybrid electricity system for homes and also buildings. A new concept of using a DC motor and synchronous generator as an electromechanical inverter is proposed ...

    • Implementation of DSP based SPWM for single phase inverter 

      Mohammad Faridun Naim, Tajuddin; N. H., Ghazali; Ismail, Daut, Prof. Dr. (Institute of Electrical and Electronics Engineers (IEEE), 2010-06-14)
      This paper presents theoretical and experimental aspects related to the implementation of a Digital Signal Processor (DSP) based Sinusoidal Pulse Width Modulation (SPWM) for single phase inverter. Two sinusoidal reference ...

    • Analysis flux on transformer core lamination assembled with mix between 60o- 45o T-joint using 2DFEM 

      Dina Maizana, Maiz Ahmad; Ismail, Daut, Prof. Dr.; Fijay, Fauzi (Universiti Malaysia Perlis (UniMAP)Institut Matematik Kejuruteraan, 2010-06-02)
      This paper describes analysis 2DFEM on 100kVA 3phase distribution transformer assembled with mix between 60-45 T-joint and mitred lap corner joint with stagger yoke and limb for one lamination. The simulation involves the ...

    • Gradient temperature on 3Phase transformer core with staggered yoke with 90 T-joint 

      Ismail, Daut, Prof. Dr.; Dina Maizana, MT; M., Ahmad (Universiti Malaysia Pahang (UMP), 2009-06-20)
      This paper describes the result of measurement of localised temperature rise on 100kVA 3phase distribution transformer assembled with 90o T-joint and mitred lap corner joint with stagger yoke with overlap length of 10mm. ...

    • The power quality impact of adjustable speed drives in industrial distribution system 

      Surya, Hardi; Ismail, Daut; Mohd Irwanto; Mohd Herwan, Sulaiman; Risnidar, Chan; Indra, Nisja (Universiti Malaysia Pahang (UMP), 2009-06-20)
      Applications of adjustable speed drives (ASDs) have benefited many industrial facilities. The primary function function of any speed drive is to control the speed of a motor. This control technique can significantly ...

    • Generating electricity in Malaysia using solar updraft tower (SUT) 

      Rosnizam, Zailan; Eng, Yi Fong; Ismail, Daut; Fijay, Fauzi (Universiti Malaysia Pahang (UMP), 2009-06-20)
      This paper presents the possibility of generating electricity for a single house in Malaysia using solar updraft tower (SUT). This paper starts with the short introduction of SUT and the advantages. Then followed with ...

    • Generation of Digital Pulse Width Modulation (DPWM) with TMS320F2812 Digital Signal Processor 

      Mohd Faridun Naim, Tajuddin; M. S., Azizan; Mohd Fayzul, Mohammed; Baharuddin, Ismail; Siti Rafidah, Abdul Rahim; Mohd Rafi, Adzman; Zainuddin, Mat Isa; Syahrul Ashikin, Azmi; Ismail, Daut (Universiti Malaysia Pahang (UMP), 2009-06-20)
      This paper presents the programming and use of TMS320F2812 Digital Signal Processor (DSP) in generating the Digital Pulse Width Modulation (DPWM). The structure and functions of eZdsp 2812 board used in this project is ...

    • Comparison of copper rotor bars with aluminium rotor bars using FEM software - A performance evaluation 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Gomesh Nair, Shasidharan; Asri, M.; Mohd Irwan, Yusoff (Institute of Electrical and Electronics Engineering (IEEE), 2009-12-28)
      It is generally assumed that copper rotor bars can outstand aluminium rotor bars in terms of better performance in losses reduction or money saving. This paper presents the comparison of the aluminium rotor bar and copper ...

    • Normal flux distribution in 45o T-joint of three phase transformer core with staggered yoke and limb10mm 

      Ismail, Daut, Prof. Dr.; Ahmad, D. M. M. (ACTA Press, 2009-09-07)
      This paper describes the result of measurement of normal flux distribution 3-phase 100kVA transformer core assembled with 450T-joint. The investigation involves the variation of normal flux distribution in the core lamination. ...

    • Design and implementation of a DSP based digital controller for a DC-DC converter 

      Mohd Faridun Naim, Tajuddin; Rahim, N. A.; Ismail, Daut (Institute of Electrical and Electronics Engineering (IEEE), 2009-12-28)
      The design and Digital Signal Processor (DSP) based implementation of a digital controller are presented for the dc-dc converter. Starting with a dc-dc buck converter and a given set of performance specifications, a digital ...

    • Design and modeling of induction motor using opera 2D based on aluminum material 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Tirapathy, S. (Institute of Electrical and Electronics of Engineering (IEEE), 2009-12-07)
      This paper will describe how finite element analysis can be utilize to design and model the performance of rotary electrical machines. Special interest placed on the induction motor since the design is simple, and has ...

    • Power quality and electromagnetic compatibility -The 'simple or not so simple' ubiquitous power supply input stage - 

      Robert, Teasdale Kennedy; Ismail, Daut (Institute of Electrical and Electronics Engineering (IEEE), 2008-12-01)
      Power Quality is per se the ac line input voltage quality that in turn is determined by the interaction of the source impedance and the line current. Low frequency line current harmonics up to the 40th harmonic (2 kHz for ...

    • Power losses on grain oriented and non-grain oriented materials using epstein test for electrical machine design 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Mohd Asri, Jusoh; Gomesh Nair, Shasidharan; Syatirah, Mohd Noor; Mohd Muzhar, Ahmad Tajuddin (ACTA Press, 2009-10-12)
      Modeling and definition of procedures leading to a good estimation of power losses in electrical machines from materials test data still is a challenge. The materials used in this experiment are grain oriented (GO) and ...

    • In-plane flux distribution in 45o T-joint of 3phase transformer core with staggered yoke and limb 10mm 

      Ismail, Daut; Ahmad, D. M. M. (ACTA Press, 2009-09-07)
      This paper describes the result of measurement of inplane flux distribution on 100kVA 3phase distribution transformer assembled with 45o T-joint and mitred lap corner joint with stagger yoke and limb with overlap length ...

    • State space averaging technique of power converter with digital PID controller 

      Mohd Faridun Naim, Tajuddin; Rahim, N. A.; Ismail, Daut; Baharuddin, Ismail; Mohd Fayzul, Mohammed (Institute of Electrical and Electronics Engineering (IEEE), 2009-01-23)
      This paper describes a digital Proportional-Integral-Derivative (PID) controller technique applied to the DC-DC buck converter. The converter is modelled using a state spaceaveraging technique. Due to the non-linear of the ...

    • Solar Powered Water Pump Prototype 

      Ismail, Daut, Prof. Dr.; Zainuddin, Mat Isa; Rosnazri, Ali; Muhammad Irwanto, Misrun; Surya Hardi, Amrin, Ir.; Syafruddin, Hassan, Ir.; Noor Syafawati, Ahmad (Malaysian Invention and Design Society (MINDS), 2010-05-14)
      Photovoltaic (PV) water pumping powered by PV application is one of the most common used throughout the world. However, the solar energy application is not widely been used in Malaysia. Improving in paddy production was ...

    • Energy Saving Through Development of New Copper Rotor of Induction Motor 

      Ismail, Daut, Prof. Dr.; Anayet, Karim; Gomesh Nair, Shasidharan; Syatirah, Mohd Noor; Mohd Asri, Jusoh; Mohd Muzhar, Ahmad Tajuddin (Malaysian Invention & Design Society (MINDS), 2010-05-14)
      This product describes the importance of induction motors is aimed at contributing to energy saving efforts. To investigate induction motor efficiency and loss parameters using new copper rotors. New copper rotors are ...